Oranges provided vitamin C and also help with their color. No not all petsmart follow procedure so not all of them get oranges however I don't understand why you feel a fish should not get oranges in their diets when it has it benefits the fish as well as gives them a verity of diet. Even my own fish get a wide verity of foods ranging from frozen, veggies, flakes, pellets, and fruits. My guys are a good size and quality healthy!